U.S. patent number 11,091,926 [Application Number 17/267,333] was granted by the patent office on 2021-08-17 for building earthquake resistance structure and earthquake resistance method.
This patent grant is currently assigned to BEIJING NORMAL UNIVERSITY. The grantee listed for this patent is BEIJING NORMAL UNIVERSITY. Invention is credited to Lanlan Guo, Yiru Jia, Jiaoyang Li, Junming Li, Jifu Liu, Lianyou Liu, Yanli Lyu, Guoming Zhang.
United States Patent |
11,091,926 |
Liu , et al. |
August 17, 2021 |
Building earthquake resistance structure and earthquake resistance
method
Abstract
A building earthquake resistance structure includes an
integrally connected roof support frame, used for supporting a roof
of a building independently from walls of the building; a plurality
of support columns, fixedly connected to the roof support frame; an
annular trench, arranged in the ground around the building; an
annular damping frame, arranged within the annular trench, lower
ends of the support columns being fixedly connected to the annular
damping frame; a plurality of dampers, arranged between a bottom
portion of the annular trench and the annular damping frame. An
earthquake resistance method for the building earthquake resistance
structure prevents damage caused by the roof collapsing during an
earthquake by supporting the roof of the existing building in the
ground via the support columns. The building earthquake resistance
structure is easy to construct and suitable for transforming
traditional old buildings.
Inventors: |
Liu; Jifu (Beijing,
CN), Jia; Yiru (Beijing, CN), Li;
Jiaoyang (Beijing, CN), Guo; Lanlan (Beijing,
CN), Li; Junming (Beijing, CN), Lyu;
Yanli (Beijing, CN), Zhang; Guoming (Beijing,
CN), Liu; Lianyou (Beijing, CN) |
Applicant: |
Name |
City |
State |
Country |
Type |
BEIJING NORMAL UNIVERSITY |
Beijing |
N/A |
CN |
|
|
Assignee: |
BEIJING NORMAL UNIVERSITY
(Beijing, CN)
|
Family
ID: |
65526160 |
Appl.
No.: |
17/267,333 |
Filed: |
September 26, 2018 |
PCT
Filed: |
September 26, 2018 |
PCT No.: |
PCT/CN2018/107437 |
371(c)(1),(2),(4) Date: |
February 09, 2021 |
PCT
Pub. No.: |
WO2019/042481 |
PCT
Pub. Date: |
July 03, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
E04H
9/0215 (20200501); E04H 9/021 (20130101); E04B
7/022 (20130101); E04H 9/023 (20130101); E04B
1/36 (20130101) |
Current International
Class: |
E04H
9/02 (20060101); E04B 7/02 (20060101); E04B
1/36 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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296591 |
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103842598 |
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206015863 |
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Mar 2017 |
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CN |
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206034676 |
|
Mar 2017 |
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CN |
|
206693419 |
|
Dec 2017 |
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CN |
|
107740504 |
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Feb 2018 |
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CN |
|
207092339 |
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Mar 2018 |
|
CN |
|
112647585 |
|
Apr 2021 |
|
CN |
|
10353907 |
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Jun 2005 |
|
DE |
|
2000345718 |
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Dec 2000 |
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JP |
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2010150814 |
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Jul 2010 |
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JP |
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Other References
International Search Report (PCT/ISA/210) issued in
PCT/CN2018/107437 dated Dec. 29, 2018. cited by applicant .
Written Opinion (PCT/ISA/237) issued in PCT/CN2018/107437 dated
Dec. 29, 2018. cited by applicant .
Chinese Office Action for Chinese Application No. 201880003839.7
dated Mar. 17, 2020, with English translation. cited by applicant
.
English translation of the Chinese Search Report for Chinese Patent
Application No. 2018800038397, dated Sep. 26, 2018. cited by
applicant.
|
Primary Examiner: Mattei; Brian D
Assistant Examiner: Gitlin; Matthew J
Attorney, Agent or Firm: Birch, Stewart, Kolasch &
Birch, LLP
Claims
The invention claimed is:
1. A building earthquake resistance structure, which is used for
the earthquake resistance treatment of an existing building,
wherein the building earthquake resistance structure comprises: an
integrally connected roof support frame, used for supporting a roof
of a building to be independent from walls of the building; a
plurality of support columns, fixedly connected to the roof support
frame by joint bearings; an annular trench, arranged in the ground
around the building; an annular damping frame, arranged within the
annular trench, the lower ends of support column being fixedly
connected to the annular damping frame through joint bearings; and
a plurality of dampers, provided between the bottom portion of the
annular trench and the annular damping frame.
2. The building earthquake resistance structure according to claim
1, wherein a first groove is disposed under the annular damping
frame, and at the bottom portion of the annular trench is provided
with a second groove corresponding to the first groove; the upper
surface and lower surface of the damper can be restricted to move
horizontally within the range of the first groove and the second
groove respectively.
3. The building earthquake resistance structure according to claim
2, wherein the damper is a cylindrical rubber pad with a
through-hole penetrating through the upper and lower bottom
surfaces, and the through-hole is internally provided with a steel
ball whose diameter is smaller than the thickness of the
uncompressed rubber pad.
4. The building earthquake resistance structure according to claim
2, wherein the second groove is provided with a downward water
leakage hole, and the water leakage hole is communicated with a
pumping well through water channels, and the pumping well is
provided with a water pumping pipe connected with a water pump.
5. The building earthquake resistance structure according to claim
2, wherein the upper part of the annular trench is covered with a
waterproof cover.
6. The building earthquake resistance structure according to claim
1, wherein the damper is a cylindrical rubber pad with a
through-hole penetrating through the upper and lower bottom
surfaces, and the through-hole is internally provided with a steel
ball whose diameter is smaller than the thickness of the
uncompressed rubber pad.
7. The building earthquake resistance structure according to claim
6, wherein the upper part of the annular trench is covered with a
waterproof cover.
8. The building earthquake resistance structure according to claim
1, wherein the second groove is provided with a downward water
leakage hole, and the water leakage hole is communicated with a
pumping well through water channels, and the pumping well is
provided with a water pumping pipe connected with a water pump.
9. The building earthquake resistance structure according to claim
8, wherein the upper part of the annular trench is covered with a
waterproof cover.
10. The building earthquake resistance structure according to claim
1, wherein the upper part of the annular trench is covered with a
waterproof cover.
11. A building earthquake resistance method, for performing
earthquake resistance treatment of an existing building, wherein
the method comprises the following steps: providing an integrally
connected roof support frame to support the roof of a building to
be independent from the walls of the building; excavating an
annular trench in the ground around the building; disposing a
plurality of dampers on the bottom of the annular trench; disposing
an annular damping frame above the damper; connecting a plurality
of support columns fixedly to the annular damping frame via joint
bearings; lifting the roof support frame together with the roof of
the building by a crane; rotating the support column so that the
upper ends of the support column is fixedly connected with the roof
support frame through joint bearings, and using the support columns
to support the roof of the building to be independent from the
walls of the building.
12. The method according to claim 11, when excavating the annular
trench, the bottom of the annular trench is provided with a water
leakage hole and a water channel communicated with a pumping
well.
13. The method according to claim 12, wherein a circular trench
groove is provided at the bottom of the annular trench for
restricting horizontal movement of the damper, and the second
groove is provided with at least one water leakage hole.
14. The method according to claim 13, wherein a circular damping
frame groove corresponding to the circular trench groove is
disposed under the annular damping frame.
15. The method according to claim 14, wherein the damping frame
groove and the circular trench groove have the same diameter.
Description
FIELD OF THE INVENTION
The invention relates to disaster reduction and emergency
management technologies in the field of earthquake research, in
particular to the field of earthquake resistance technology about
earthquake zone buildings. Specifically, the invention relates a
building earthquake resistance structure and earthquake resistance
method.
BACKGROUND OF THE INVENTION
An earthquake is a sudden natural disaster. A devastating
earthquake often causes very serious economic losses and casualties
in a very short time. Most of the losses and casualties are caused
by the destruction of the building in the earthquake. Especially in
the traditional old buildings in remote areas of China, most of
them use brick walls or adobe structures without earthquake
resistance measures. Many buildings are easily destroyed and
collapse in an earthquake and the damage of the earthquake is
particularly serious.
In the prior technology, the earthquake resistance modification of
existing buildings normally has two measures, one is the structural
strengthening, the other is the foundation shock absorption.
Wherein, the structural strengthening is to improve the earthquake
resistance performance of the structural members by improving the
strength and deformation capacity of the structural members. For
example, implanting steel bars into the walls of buildings to
improve the structural stiffness of the walls. The foundation shock
absorption is to provide a shock-absorbing structure under the
foundation of the entire building. For example, lifting the
foundation of the entire building and then placing dampers and so
on.
However, for the traditional old brick walls or adobe structure
walls, one aspect of the earthquake resistance strengthening method
of the bonded rebars of walls is that the material and construction
cost is much higher than the overall value of the traditional old
building. It is better to push down and rebuild. The other aspect
is that the weight of the walls structure increases after the walls
is strengthened, and after the walls collapses in the earthquake,
the threat to personal safety is greater. Therefore, the economic
and social benefits of adopting structural strengthening measures
for the existing traditional old buildings are very low. The
construction of the basic shock absorption measures is very
difficult and costly. They are generally only suitable for
buildings with special historical and economic value. For
traditional old buildings in existing remote areas, the basic shock
absorption has little practical significance.
Therefore, at the present stage, for earthquake disaster reduction
and emergency management, there is an urgent need to provide a
low-cost solution for a large-scale earthquake resistance
reconstruction of existing buildings with traditional old brick
walls or adobe structures to reduce economic losses and casualties
caused by the earthquake.
SUMMARY OF THE INVENTION
The technical problem to be solved by the present invention is to
provide a building earthquake resistance structure and earthquake
resistance method to reduce or avoid the problems mentioned
above.
In order to solve the above technical problems, the invention
provides a building earthquake resistance structure, which is used
for the earthquake resistance treatment of an existing building,
wherein the building earthquake resistance structure comprises: an
integrally connected roof support frame, used for supporting a roof
of a building to be independent from walls of the building; a
plurality of support columns, fixedly connected to the roof support
frame by joint bearings; an annular trench, arranged in the ground
around the building; an annular damping frame, arranged within the
annular trench, the lower ends of the support column being fixedly
connected to the annular damping frame through joint bearings; a
plurality of dampers, arranged between a bottom portion of the
annular trench and the annular damping frame.
Preferably, a first groove is disposed under the annular damping
frame, and at the bottom portion of the annular trench is provided
with a second groove corresponding to the first groove; the upper
surface and lower surface of the damper can be restricted to move
horizontally within the range of the first groove and the second
groove respectively.
Preferably, the damper is a cylindrical rubber pad with a
through-hole penetrating through the upper and lower bottom
surfaces, and the through-hole is internally provided with a steel
ball whose diameter is smaller than the thickness of the
uncompressed rubber pad.
Preferably, at the two edges of the second groove with the largest
spacing are respectively provided with a downward water leakage
hole, and the water leakage hole is communicated with a pumping
well through water channels, and the pumping well is provided with
a water pumping pipe connected with a water pump.
Preferably, the upper part of the annular trench is covered with a
waterproof cover.
The present invention also provides a building earthquake
resistance method, for performing earthquake resistance treatment
of an existing building, wherein the method comprises the following
steps: providing an integrally connected roof support frame to
support the roof of a building to be independent from the walls of
the building; excavating an annular trench in the ground around the
building; disposing a plurality of dampers on the bottom of the
annular trench; disposing an annular damping frame above the
damper; connecting a plurality of support columns fixedly to the
annular damping frame via joint bearings; lifting the roof support
frame together with the roof of the building by a crane; rotating
the support column so that the upper ends of the support column is
fixedly connected with the roof support frame through joint
bearings, and using the support columns to support the roof of the
building to be independent from the walls of the building.
Preferably, when excavating the annular trench, the bottom of the
annular trench is provided with a water leakage hole and a water
channel connected with a pumping well.
Preferably, a circular second groove is provided at the bottom of
the annular trench for horizontal movement of the damper within its
range, and at the two edges of the diameter of the second groove
are respectively provided with a water leakage hole.
Preferably, a circular first groove corresponding to the second
groove is disposed under the annular damping frame.
Preferably, the first groove and the second groove have the same
diameter.
The building earthquake resistance structure and earthquake
resistance method of the present invention is that it supports the
roof of the existing building on the ground by supporting parts,
which can avoid the loss caused by roof collapse during the
earthquake. The earthquake resistance structure is easy to
construct, especially suitable for the reconstruction of
traditional old buildings, with high economic and social benefits
and easy to promote and use.
DESCRIPTION OF THE DRAWINGS
The following drawings are only for the purpose of description and
explanation but not for limitation. Wherein:
FIG. 1 shows a schematic diagram of the structure of an existing
building;
FIG. 2 shows a decomposition schematic diagram of a roof support
structure according to a specific embodiment of the present
invention;
FIG. 3 shows a schematic view of a building earthquake resistance
structure according to another specific embodiment of the present
invention;
FIG. 4 shows the A-A sectional view as shown in FIG. 3;
FIG. 5 shows a schematic diagram of the structure of an annular
damping frame according to another specific embodiment of the
present invention.
DESCRIPTION OF PREFERRED EMBODIMENT
In order that the present invention can be more readily understood,
reference will now be made to the accompanying drawings to
illustrate the embodiments of the present invention. Wherein, the
same components have been marked with the same reference
numerals.
As shown in FIG. 1, it shows a schematic diagram of the structure
of an existing building, which is a typical traditional old
structure building. Roof 100 of the building does not show the
outermost tiles and other structures, and only a few wooden beams
300 placed on walls 200 are schematically shown. Due to the lack of
suitable timber for the walls, walls 200 of traditional and old
buildings in China are generally brick walls or adobe. As described
in the background, if the existing building shown in FIG. 1 is
reconstructed with the existing technologies, its economic and
social benefits are very low. Accordingly, aiming at this technical
problem, the present invention provides a low-cost solution, which
is used to carry out the large-scale earthquake resistance
reconstruction of existing buildings with traditional old brick
walls or adobe structures, so as to reduce economic losses and
casualties caused by earthquakes.
Specifically, the solution of the present invention is to support
roof 100 of the existing building to be on the ground independent
from walls 200 through the supporting parts. When the earthquake
occurs, because supported by the shock-absorbing structure of the
supporting parts, roof 100 will not collapse, thereby reducing the
death of people due to the collapse of roof 100 and reducing the
property loss caused by the damage of roof 100. In addition, the
well-preserved roof 100 can provide basic shelter and prevent the
victims from sleeping on the streets after an earthquake, and walls
200 can be quickly repaired under roof 100. It is conducive to
post-disaster reconstruction.
In short, due to the structural characteristics of the traditional
old buildings in remote areas, the structural strength of walls 200
is insufficient and it is easy to collapse in an earthquake.
However, since the height of these traditional old buildings is
very small, the collapse of walls 200 usually does not cause much
damage. Conversely, after the collapse of walls 200, the wooden
beam 300 on roof 100 is likely to cause death. Therefore, by
supporting roof 100, the present invention can avoid the loss
caused by the collapse of roof 100.
In order to facilitate supporting roof 100 on the ground to be
independent from walls 200 by the supporting parts, at first, we
should provide a support structure to support the whole roof 100.
FIG. 2 shows a decomposition schematic diagram of a roof support
structure according to a specific embodiment of the present
invention. The figure shows that under roof 100 of the existing
building, an integrally connected roof support frame 1 is
additionally provided, which is preferably adopted with a steel
welded structure. As shown in the figure, roof support frame 1
includes a triangular roof truss 11 arranged adjacent to each of
the sidewalls, and a transverse connector 12 connecting the
vertices of each triangular roof truss 11 together. Roof support
frame 1 in FIG. 2 shows a simple structure that can be designed in
other forms according to different building structures, as long as
roof 100 can be supported independent from walls 200 of the
building.
FIG. 3 shows a schematic view of a building earthquake resistance
structure according to another specific embodiment of the present
invention. Roof 100 of the building shown in the figure has been
supported independent from walls 200 by the roof support frame 1
shown in FIG. 2. As shown in FIG. 3, the building earthquake
resistance structure of the present invention can be used for
earthquake resistance treatment of an existing building. The
building earthquake resistance structure comprises: the integrally
connected roof support frame 1 as shown in FIG. 2, used for
supporting roof 100 of the building to be independent from walls
200 of the building. In addition, a plurality of support columns 2
are fixedly connected to the roof support frame 1 by joint bearings
(not shown). In the specific embodiment shown in FIG. 3, each of
the four corners of the building is provided with a support column
2. Further, the building earthquake resistance structure of the
present invention comprises an annular trench 3 arranged in the
ground around the building. The lower end of support column 2 is
connected with the shock-absorbing structure arranged in annular
trench 3, to isolate the influence of ground vibration on support
column 2 and at the same time to provide further cushioning and
shock absorption for support column 2 through the shock-absorbing
structure.
The shock-absorbing structure in annular trench 3 will be described
in detail below according to FIG. 4, wherein FIG. 4 shows the A-A
sectional view as shown in FIG. 3. The figure shows that an annular
damping frame 4 is arranged within annular trench 3, and the lower
ends of support column 2 are fixedly connected to annular damping
frame 4 through joint bearings 21. Further, a plurality of dampers
5 are provided between the bottom of the annular trench 3 and the
annular damping frame 4. When an earthquake occurs, the annular
damping frame 4 used to connect the support column 2 can move as a
whole relative to the ground under the support of the damper 5. By
the buffer of the damper 5, the impact of the seismic wave on the
support column 2 can be reduced, and the stability of the roof 100
above the support column 2 can be maintained, thereby can keep the
roof 100 from collapsing.
FIG. 5 shows a schematic diagram of the structure of an annular
damping frame according to another specific embodiment of the
present invention, which can show the overall structure of the
annular damping frame 4 provided in the annular trench 3. In the
specific embodiment illustrated in FIG. 3-5, the annular trench 3
is designed as a rectangular structure according to the style of
the building. Corresponding to the rectangular structure of the
annular trench 3, the annular damping frame 4 provided in the
annular trench 3 is also rectangular. Of course, those skilled in
the art should understand that according to actual needs, the
annular trench 3 and the annular damping frame 4 can also be
designed as other polygons or circles, as long as the annular
trench 3 can provide sufficient shock absorption space for the
annular damping frame 4. On one hand, the annular trench 3 of the
present invention can separate the connection between the
foundation of the building and the ground, which reduces the
horizontal impact of the earthquake; on the other hand, the shock
absorption structure can be conveniently set in the annular trench
3 to hide the shock absorption structure under the ground, which
avoids obstacles to people when enters and leaves the building. It
is especially important that the annular trench 3 can be easily
constructed around the building, and does not need to touch the
foundation, walls and other structures of the building. It is
particularly suitable for the reconstruction of traditional old
buildings, with simple operation, low cost, high economic and
social benefits, and easy to promote and use.
In a specific embodiment of the present invention, a first groove
51 is disposed under the annular damping frame 4. At the bottom
portion of the annular trench 3 is provided with a second groove 52
corresponding to the first groove 51. The upper surface and lower
surface of the damper 5 can be restricted to move horizontally
within the range of the first groove 51 and the second groove 52
respectively. Preferably, both the first groove 51 and the second
groove 52 may be arranged in a circular shape, with corresponding
positions to each other and have the same diameter, so that the
same horizontal movement range for the damper 5 can be provided.
The first groove 51 and the second groove 52 can be used to
restrict the horizontal movement of the damper 5 within a certain
range, to avoid the support structure being uneven due to the
excessive displacement of the damper 5 results from the impact of
the earthquake. That is, in the case of frequent earthquakes, the
position of the damper 5 will move, if there is no restriction,
some dampers 5 may gather on one side of the annular damping frame
4, which may cause the annular damping frame 4 tilting and failure.
But by the first groove 51 and the second groove 52 with limited
position movement function can prevent this situation occur.
Further, in another specific embodiment, as shown in FIG. 4 and
FIG. 5, the damper 5 can be a cylindrical rubber pad with a
through-hole 53 penetrating through the upper and lower bottom
surfaces, and the through-hole 53 is internally provided with a
steel ball 54 whose diameter is smaller than the thickness of the
uncompressed rubber pad. The damper 5, with the form of a
cylindrical rubber pad, has elasticity and can be compressed so
that the vertical impact of the earthquake can be reduced. The
steel ball 54 can provide a certain support force when the rubber
pad is compressed, so as to avoid the rubber pad cracking due to
excessive force, which can improve the service life of the rubber
pad. When subjected to the horizontal impact of the earthquake, the
steel ball 54 can easily roll, the rolling steel ball 54 extrudes
the inner wall of the through-hole 53, which makes the rubber pad
laterally deform, thereby absorbs the horizontal impact by lateral
deformation of the rubber pad. The damper 5 of the present
invention has a simple structure and is easier to manufacture
compared with the existing damping structure of the laminated
structure. It is particularly suitable for the low-cost shock
absorbing structure of the present invention.
In addition, in order to prevent the shock-absorbing structure from
being eroded by rainwater, at the two edges of the second groove 52
with the largest spacing are respectively provided with a downward
water leakage hole 6. The water leakage hole 6 is communicated with
a pumping well 7 through water channels, and the pumping well 7 is
provided with a water pumping pipe connected with a water pump 8.
When the second groove 52 is circular, the two water leakage holes
6 are respectively disposed at both edges of the diameter of the
second groove 52, so that when the damper 5 moves, there is always
a water leakage hole 6 that will not be blocked by the damper 5, so
as to avoid rainwater gathering in the second groove 52.
Preferably, the upper part of the annular trench 3 is further
covered with a waterproof cover. The waterproof cover can be used
to prevent rainwater from entering the annular trench 3 on one
hand. On the other hand, it can shield the annular trench 3 to
avoid damage caused by people or objects falling into the annular
trench 3. Preferably, the waterproof cover is made of a stainless
steel plate. It can bear the weight of people and vehicles, to
facilitate the daily pass for the householder and other people.
The building earthquake resistance method of the present invention
will be further described below with reference to the accompanying
drawings. The method is used for performing earthquake resistance
treatment of an existing building, wherein the method comprises the
following steps:
Providing an integrally connected roof support frame 1 to
supporting the roof 100 of the building independent from the walls
200 of the building; excavating an annular trench 3 in the ground
around the building; and disposing a plurality of dampers 5 on the
bottom of the annular trench 3; disposing an annular damping frame
4 above the damper 5; connecting a plurality of support columns 2
fixedly to the annular damping frame 4 via joint bearings 21; and
lifting the roof support frame 1 together with the roof 100 of the
building by a crane; rotating the support column 2 so that the
upper ends of the support column 2 is fixedly connected with the
roof support frame 1 through joint bearings (not shown in the
figure); and using the support columns 2 to support the roof 100 of
the building to be independent from the walls 200 of the
building.
Preferably, when excavating the annular trench 3, the bottom of the
annular trench 3 is provided with a water leakage hole 6 and a
water channel communicated with a pumping well 7.
The improvement and deformation of other structures involved in the
building seismic method of the present invention can be referred to
the various embodiments and their combinations of the building
seismic structures in the above-mentioned embodiments, and they
will not be described in detail here.
The skilled person in the art should understand that, although the
present invention has been described with multiple embodiments,
each embodiment does not include only one independent technical
solution. It is only for the purpose of clarity to describe like
that, the person in the art should understand the specification as
a whole and the technical solutions in all embodiments can be inter
combined with each other to form the protection scope of the
present invention.
Whilst the above description has been given by way of illustrative
examples of the present invention, but it is not for limitation of
the scope of the invention. Variations and modifications thereto
will be apparent to those skilled in the art without departing from
the broad ambit and scope of the invention as herein set forth in
the following claims.
* * * * *